my 2001 Ford F150 Screw Lariat CD/tape/radio does this. it's the one with the CD player in the center cosole (6 CD's). doesn't go striaght to max, but when i turn it down, it goes up! i shut the truck down, wait 5 seconds, restart and that usually fixes it...sometimes it takes multiple attempts though. I definitely want to keep the OEM look and ease of use, along with the 6-CD player (in the console). I found several for less than $40 on ebay....will pull the radio, check PN's and then see what happens...will update .